C3MA/DD3-LoRa-Bridge-MultiSender
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Refactor LoRa protocol to batch+ack with ACK-based time bootstrap

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acidburns
2026-02-04 11:57:49 +01:00
parent f08d9a34d3
commit f0503af8c7
20 changed files with 326 additions and 1048 deletions
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23
include/config.h
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@@ -7,21 +7,11 @@ enum class DeviceRole : uint8_t {
Receiver = 1
};
enum class PayloadType : uint8_t {
MeterData = 0,
TestCode = 1,
TimeSync = 2,
MeterBatch = 3,
Ack = 4
};
enum class BatchRetryPolicy : uint8_t {
Keep = 0,
Drop = 1
};
constexpr uint8_t PROTOCOL_VERSION = 1;
// Pin definitions
constexpr uint8_t PIN_LORA_SCK = 5;
constexpr uint8_t PIN_LORA_MISO = 19;
@@ -57,17 +47,7 @@ constexpr uint8_t LORA_PREAMBLE_LEN = 8;
// Timing
constexpr uint32_t SENDER_WAKE_INTERVAL_SEC = 30;
constexpr uint32_t TIME_SYNC_INTERVAL_SEC = 60;
constexpr uint32_t TIME_SYNC_SLOW_INTERVAL_SEC = 3600;
constexpr uint32_t TIME_SYNC_FAST_WINDOW_MS = 10UL * 60UL * 1000UL;
constexpr uint32_t SENDER_TIMESYNC_WINDOW_MS = 300;
constexpr uint32_t SENDER_TIMESYNC_CHECK_SEC_FAST = 60;
constexpr uint32_t SENDER_TIMESYNC_CHECK_SEC_SLOW = 3600;
constexpr uint32_t TIME_SYNC_DRIFT_THRESHOLD_SEC = 10;
constexpr uint32_t TIME_SYNC_BURST_INTERVAL_MS = 10000;
constexpr uint32_t TIME_SYNC_BURST_DURATION_MS = 10UL * 60UL * 1000UL;
constexpr uint32_t TIME_SYNC_ERROR_TIMEOUT_MS = 2UL * 24UL * 60UL * 60UL * 1000UL;
constexpr bool ENABLE_DS3231 = true;
constexpr uint32_t SYNC_REQUEST_INTERVAL_MS = 15000;
constexpr uint32_t OLED_PAGE_INTERVAL_MS = 4000;
constexpr uint32_t OLED_AUTO_OFF_MS = 10UL * 60UL * 1000UL;
constexpr uint32_t SENDER_OLED_READ_MS = 10000;
@@ -107,6 +87,7 @@ constexpr const char *WEB_AUTH_DEFAULT_USER = "admin";
constexpr const char *WEB_AUTH_DEFAULT_PASS = "admin";
constexpr uint8_t NUM_SENDERS = 1;
constexpr uint32_t MIN_ACCEPTED_EPOCH_UTC = 1769904000UL; // 2026-02-01 00:00:00 UTC
inline constexpr uint16_t EXPECTED_SENDER_IDS[NUM_SENDERS] = {
0xF19C //433mhz sender
//0x7EB4 //868mhz sender